Winding arbor



H. R. LONGFELLOW WINDING ARBOR 2 Sheets-Sheet l /NvE/vro@ H. R. LON FELLOW ATTORNEY Oct. 13, 1953 Filed May s, 195o )lll llllllull AIlllllllllll Oct. 13, 1953 H. R. LoNGFELLow WINDING ARBOR 2 Sheets-Sheet 2 Filed May 6, 1950 y l/E/v To@ H R. LONGFELLOW ATTORNEY Patented Oct. 13, 1953 WINDING ARBOR Harold R. Longfellow, Baltimore, Md., assignor to Western Electric Company, Incorporated, New York, N. Y., a corporation of New York Application May 6, 1950, Serial No. 160,543

10 Claims.

rl'his invention relates to winding arbors, and more particularly to collapsible arbors used for winding flexible material into pads.

Frequently it is desirable to wind a plurality of strips of paper upon an arbor into individual coiled pads. Usually it is desirable to wind the paper strips tightly around the arbor in order to form firm, self-supporting pads that may be used with apparatus designed to pay-off a paper strip from such a pad. In order to remove tightly wound pads from an arbor without damaging them, it is proposed to make portions of the arbor collapsible to reduce the cross-sectional area thereof.

An object of the invention is to provide new and improved winding arbors.

Another object of the invention is to provide new and improved collapsible arbors for winding ilexible materials into pads.

A further object of the invention is to provide an improved arbor for winding machines whose circumference and bearing area lcan be changed so that pads can be readily wound on and removed from the arbor.

A winding arbor embodying certain features of the invention may include an elongated winding element having a discontinuous portion in the surface thereof and a transverse bore communicating with said discontinuous portion, a segmental member positioned in said discontinuous portion, an actuating member positioned in said bore, and means for engaging said actuating member to move said segmental member into and out of alignment with the external surface of said winding element.

Other objects and advantages of the invention will appear from the following detailed description of an arbor forming a specific embodiment thereof, when read in conjunction with the appended drawings, in which:

Fig. 1 is a plan view of a arbor embodying certain features of the invention;

Fig. 2 Yis an elevation of an element forming a part of the arbor shown in Fig, 1;

Fig. 3 is an enlarged transverse section taken along line 3-3 of Fig. l.;

Fig, 4 is a transverse section similar to Fig. 3 showing some of the elements of the arbor in different positions;

Fig. 5 is an enlarged transverse section taken along line 5--5 of Fig. l;

Fig. 6 is an enlarged fragmentary transverse section showing the manner in which flexible man terial is clamped to the arbor;

Fig. '7 is an enlarged transverse section of a i winding machine (not shown), which is arranged to rotate the arbor and wind a plurality of paper tapes I3I3 shown in Fig. 6, into coiled pads I4-I4 (Fig. 1). The winding portion II is substantially larger in diameter than the journal ends l2-l2, and is provided with diametrically opposed longitudinal grooves It and I6 in its winding surface. The groove I5 does not extend the full length of the winding portion II of the rod'l', but the groove i6 extends the full length of the winding portion of the rod. The groove IE is of such depth that the bottom thereof does not extend below the surface of the journal ends IZ-IE. An elongated segment I8 mounted slidably in the groove I5 has a curved outer surface 28 having a radius equal to the radius of the winding portion I I of the rod Iii. The maximum thickness of the segment I8 is substantially less than the depth of the groove i5 so that when the segment is in its collapsed position (Fig. 4) resting on the bottom of the groove, the surface 20 is positioned well inside the winding periphery of the rod,

A plurality of bores 23--23 (Figs. l and 3) come municate with the groove i5 and have counterbored portions 2li-24 which communicate with the groove IE. Bushings 21-2'1 secured to the underside of the segment I8 by screws ZEE-2S are provided with enlarged heads 32E-til slidably mounted in the counterbores 24-24 and body portions 3I-3I slidably mounted in the bores 23-23. The bushings 21--21 are of such length that when the heads 30-30 of the bushings abut the bottom of the counterbores 2li-24, the segment I8 is in its winding position, in which the curved surface 2i? forms a portion of the cylindrical periphery of the winding portion il of the rod IU.

An arcuate bar 35 (Figs. 1 and 3) may be moved laterally into the groove I6 to engage the heads of the screws 28h28 and hold the heads 3-3il of the bushings 2'I-2'I against the bottom of their respective counterbores 2lb-24, and to fasten the ends of the tapes l3--I3 to the rod. The bar 35 is tempered so that its inherent resiliency tends to hold it in a curved shape, as is illustrated in Fig. 2. End portions 35--35 of the bar are tapered and also are provided with holes 31-31. outer surface 3S (Fig. 3) of the bar is curved to form a continuation of the winding portion. i i of the rod It when the bar is seated in the groove, and the inner portion is provided with a central longitudinal groove 39. One end of the bar is insertedinto. the;- grcove i6v and' under a collar 3e secured to the rod so that it curves outwardly away from the rod. IThe bar is pressed manually inwardly until it is completely withinthe groove i5. A spring-clip 45 then is snappedover the right-hand end portion of the rod I 8, as viewed in Fig. l, into tapered `sockets'A3---43- to lock the bar 35 in the groove I S. Ilheeockets i3-i3 locate the clip in a centered position on the rod.

The resiliency of the bar causes it to press against all the screws 28-28 and hold the Vheads iii-30 of the bushings against the bottom o'l' their respective counterbores 2id-44,. thereby holding the segment I8 in its winding position. Thus, a circular winding surface (Fig. t.) is maintained throughout the Vlength of the winding portion II of the rod Ill. The bar 35 is of such size with respect to the groove H5 that sufcent clearance is provided between the bar and the sides and bottom of Vthe groove IG for clamping the paper tapes ITS- i3 to the rod Ie of the arbor as. seen Figs. 3 and 6. When the arbor is rotated on a winding. machine with which itis used, it winds the paper tapes I3-I3 into tightly wound, self-supporting pads lli-I4. The groove 39 is provided in the inner surface of the Abar so that the curved bar may be pressed into the groove I6 against the-action -o-f its inherent resiliency. While the assembly of the rod it, the segment I8 and the winding portion of the bar @.5 has been described as being cylindrical in shape, it is preferable to 4taper the assembly so that the diameter of the winding portion II of theY rod decreases gradually from, 4left to right, as Viewed in Fig. l. The taper facilitates withdrawal of the bar 535 from Vthe --rod- I when the arbor contains the pads I4a-.-.I,4, and also. the withdrawal of the arbor from the pads. The right, hand end of the winding portion of the rod it between the right end of the groove and the right hand journal VI2 isy provided with a flat side 45 in the same plane as the longitudinal edges of the groove l5 to reduce the circumference of this portion of the rod.

An extension 4'! provided on one end' of the rod I El has a keyway 48 for securing a suitable driving means such as a gear or pulley to the rod i0. Usually, such a driving means is driven by the winding machine torotate the rod I@ until the diameter of the pads I4-I4 builds up suiliciently to drive the rod by Vcontact with a roller advancing the tapes to the rod.

Operation Let it be assumed that the arbor, having the bar 35 Yremoved from the groove I6', is positioned in a suitable winding machine arranged to wind the tapes I 3-I3 on the arbor. The arbor is positioned so that the groove IB is facing upwardly and the ends of the tapes I3-I3 are laid side by side across the groove I6 in the rod I0. The bar 35 then is positioned in the groove I6 by inserting one end underv the collar 34 so that the bar curves away from the rod I I), and is pressed manually into the groove. The spring-clip 46 is positioned over the right-hand end of the rod I0 so that the open ends thereof rest in the .4 sockets 43-43 to hold the bar in the groove. When the bar 35 is positioned in the groove I6 in this manner, Lit clamps the ends of the strips l-IS to the winding portion II of the rod I0 of the arbor, and also holds the heads -30 of the bushings 21--21 against the bottom of their respective counterbores 24-24.

When the 'bushings "2;1--21 are held inV this position, they hold the segment I8 in its Winding position. The arbor is rotated by the machine to wind the tapes I3--I3 into pads I4-I4. 'I'hetapes I 3-I 3 are maintained under suncient tension to make the pads hard and tightly wound on the winding portion of the arbor.

When the pads `I4I4 reach a predetermined diameter, the winding of the tapes on the arbor is terminated. The arbor then is lifted out of the winding machine, and is positioned on a suitable workbenoh (not shown) so that the pads may be removed from. the arbo-r. The springclin 411i is removed from the rod I0, and the bar is withdrawn from the groove I6 by placing a hook in the hole 31 the left-end of the bar 35 and vpulling the hook to the left. as viewed in Fig. Vl. rhis permits the segment I8. to be moved backV into the groove I5, whereby the periphery of the arbor is, reduced. This reduction in the-periphery of the winding portion of the arbor permits the arbor to be withdrawn'readily from-the pads without damage thereto. After the arbor has-been withdrawn from'the pads, it is replaced in the winding machine so that other tapes I'3-I3' may be secured to the arbor and wound into pads in the manner described.

Embodiment shown in Fig. 7

Fig. 7 shows a cylindrical Winding arbor forming an alternate embodiment of the invention which includes a rod III), generally like the rod Hl shown in Fig. V1. The rod IIO (Fig. '7) is provided with a winding portion II having opposed longitudinal grooves II5- and II6 in its winding surface. A segment IIBpositioned in the groove I I5 has secured thereto a plurality of bushings IZT-,IZI secured spacedly to the segment by screws I-2'8-I28'. The bushings IZI-IZ'I are mounted slidably in bores I23--I23 and counterbores I'24.-I24 in the manner described for the bushings 21-21 of the principal embodiment of the invention. The bushings I`2'I-I2l are provided with enlarged heads I3-0--I30- A bar I35,

. the heads lao- |30 of the bushings 121-121 against the bottom or the counterbores I24--I24, to hold the segment H8 so that its curved surface I 20 forms a continuation of the winding surface of the arbor.

The Winding portion III of the rod IIB also is provided Iwith a second pair of opposed longitudinal grooves I and I5I positioned at right angles to the transverse axis of the grooves IIS and IIS. An elongated segment |53 positioned movably in theV groove |50 has a plurality of bushings I54-I 54 secured spacedly to the underside of the segment by screws I55-I55 so as to slidably engage bores ISIS-|56 and counterbores I51-I5'I. The bores ld-|56 and their respective counterbores I5'I-I5I communicate with the grooves |55 and I5I, respectively, and are positioned spacedly in the rod III) between the bores I23-I23 and counterbores I24-I24. A Y

curved bar I 59, which is identical in construction and shape with the bar 35 shown in Fig. 2, is inserted in the groove I5I to actuate the bushings in their respective bores so that they vabut the bottom of their respective counterbores and hold the segment |53 so that its curved surface |58, forms a continuation of the winding surface of the rod I |11 when the bar is seated in the groove.

Operation of embodiment shown in Fig. 7

The rod is positioned in the winding machine with the bar |35 removed from its groove ||6 but with the bar |59 assembled in its groove |I. The ends of the tapes to be wound on the rod are laid side by side across the groove ||6 and the bar |35 is inserted in the groove to, clamp the ends of the tapes to the rod H0. It is to be understood that the rod ||0 is provided with a collar like the collar 34 and a clip similar to the spring-clip 40 for holding the bars |35 and` |56 in their respective grooves. The rod I0 is driven by the winding machine to Wind the tapes into tightly Wound pads, like the pads |4|4.` When the pads reach a predetermined diameter, the winding of the tapes on the arbor is terminated. The rod I6 then is lifted from the winding machine and placed on a suitable Work bench so that the bars |35 and |59 may be drawn from the rod in the same manner as that in which the bar 35 is removed from the groove |6. Removal of the bars |35 and |59 from the grooves allows the segments ||8 and |53 to move into their respective grooves and thereby reduce the crosssectional area of the rod ||0, whereby the rod ||D may be withdrawn readily from the pads Wound thereon without damage to the pads.

Embodiment shown in Fig. 8

Fig. 8 shows a winding arbor forming a further embodiment of the invention, which may include an elongated rod 2li) similar to the rod l0 described in the preferred embodiment of the invention. The rod 2|IJ has a central bore 260 extending longitudinally therethrough and opposed keyways 262 and 263 formed therein. Elongated segments 265 and 266 are positioned Inova-bly in opposed longitudinal grooves 261 and 21B, respectively. A plurality of posts 212-212 having body portions 213-213 and enlarged head portions 214-214 are secured spacedly to the underside of the segment 265. The body portions of the posts 212-212 engage bores 215-215 communicating with the groove 251 and the keyway 262 in the same manner as that in which the bores 23-23 communicate with the groove |5 of the arbor described as the preferred embodiment of the invention. The enlarged head portions of the posts 212-212 slidably engage the keyway 262.

The segment 266 has a plurality of posts 216- 216 which are identical in construction to the posts 212-212 secured to the segment 265. rIhe posts 21S-216` slidably engage bores 211-211, which communicate with the groove 218 and the keyway 263 and the enlarged head portions of the posts slidably engage the keyway 263. I'he posts 212-212 and 216-216 are of such length that when the head portions thereof engage the bottom of the keyways 262 and 263, they position the segments 265 and 266 so that their outer curved surfaces 286 and 28| form continuations of the winding surface of the rod.

The rod 2| 6 is provided with a longitudinal groove 283 for slidably receiving a bar 284 which is identical in construction and shape with the bar 35 shown in Fig. 2. The bar 284 is provided with a curved surface 285 `which forms a continuationof the Winding surface of the rod when the bar is positioned in its groove. The bar 284 is used to clamp the ends of the tapes to the rod 2||| in the same manner that the bar 35 clamps the tapes |3|3 to the rod ID. An elongated bar 286 fits slidably in the keyways 262 and 263 and is of such Width that when the bar is positioned in the keyways, it holds the posts 212-212 and 216-21-6 so that their head portions abut the bottom of the keyways 262 and 263. When the posts are held in this position, the outer surfaces 280 and 28| of the segments 265 and 266 form continuations of the winding surface of the rod 2|8.

`Operation of embodiment shown in Fig. 8

The rod 2|0 is positioned in a suitable winding machine with the bar 266 positioned in the keyways 262 and 263 to hold the segment 265 and 266 in their winding position, but with the bar 284 removed from its groove 283. The ends of the paper tapes to be wound into pads on the arbor are laid side by side across the groove 283. The curved bar 284 then is positioned in the groove 283 and is held in place by a collar like the collar 34 positioned on one end of the rod and a spring-clip like the clip 46 positioned on the other end of the rod. The rod 2 6 then is rotated to Wind the paper tapes into pads, like the pads |4-|4. When the pads wound on the rod reach a predetermined diameter, rotation of the arbor is terminated and the arbor then is removed from the machine and placed on a suitable Work bench.

The bar 284 is removed from the groove 283 and the bar 286 then is removed from the keyways 262 and 263 to allow the segments 265 and 266 to move toward the bottom of their respective grooves. This movement of the segments reduces the cross-sectional area of the rod 2|6 so that the rod may be withdrawn from the tightly Wound pads without damaging the pads.

`While the above-described arbors are particularly Well fitted for winding tapes of exible material into tightly Wound, self-supporting pads, each may be used readily for winding a single sheet of flexible material into a tightly wound roll, and may be readily Withdrawn from such a roll by the removal of the bar 35 from the arbor in the manner described.

The above-described arbor may be readily modifled to suit various types of winding apparatus Without departing from the spirit and scope of the invention.

What is claimed is:

1. An arbor for winding flexible material into coils, which comprises an elongated element having a portion upon which coils of such material may be Wound, said Winding portion having opposed gaps in its winding surface and a transverse bore communicating with the gaps, an elongated segment mounted in one of the gaps of the winding portion of the element and movable generally transversely with respect to the element between a collapsed position and one in which `the cuter surface of the segment forms a continuation of the winding surface of the element, a thrust member mounted slidably in the pore for moving the segment with respect to the winding portion of the element, and means insertable in the other gap in the winding surface for forming a part of the winding surface of the arbor and for clamping the material to the element and for actuating the thrust member to move the outer surface of the segment into and out of alignment with the winding surface of the element.

2. An arbor for winding flexible material into fcoilsgwhich comprises an elongated element having a portion upon which coils of such material may be Wound, said Winding portion having opposed gaps in its wmding surface and a guideway extending transversely therethrough and communicating with said gaps, an elongated segment mounted in one of the gaps of the winding surface of the element and movable generally transversely with respect -to the element between a collapsed position and one in which theouter surface of the segment forms a continuation of the winding surface, a thrust member mounted slidably in the guideway for moving the segment with respect to the winding portion of the ele- 'ment, -means insertable in the other gap in the winding pcrtion for clamping the ends of the material to the element and for forming a continuation of the winding surface and actuating the thrust member to hold the segment in such a position that the outer surface thereof is iiush with the winding surface of the element and removable from the gap to collapse the segment on the winding portion of the element, and means for selectively holding the thrust-actuating means on the winding portion while the material is wound thereon and for releasing the Vthrust-actuating means jso that it may be re- -moved from the winding portion after the material is Wound thereon.

3. An arbor for winding flexible material into coils, which comprises an elongated cylindrical body having a gap in its winding surface, an elongated segment positioned in the gap to ll in substantially the discontinuity in the winding surface and movable generally transversely between a collapsed position and an expanded position in which the outer surface of the segment forms a continuation of the winding surface of the body, said body having a longitudinal groove in its winding surface diametrically opposed to the movable segment and a bore communicating with the gap in the winding surface and the groove, a thrust element attached to the segment and mounted slidably in the bore for moving the segment with respect to the body, a bar insertable in the groove for moving the thrust element to such a position that it holds the segment so that its outer surface is aligned With the winding surface of the body, and means attachable to the body for selectively holding the bar 'in its Vgroove and thereby holding the segment in its winding position While material is Wound on the body and for releasing the bar so that it may be withdrawn from the groove after the material is wound on the body, whereby when the bar is removed from the groove the segment collapses toward the body and permits the arbor to be withdrawn from the material wound thereon.

4. An arbor for winding flexible material into coils, which comprises an elongated cylindrical body having opposed gaps in its winding surface and a transverse bore communicating with the gaps in said winding surface, an elongated segment positioned in one of the gaps and movable generally transversely With respect to the body between a collapsed position and an expanded position in which the outer surface of the segment forms a continuation of the winding surface of the body, a thrust element attached to the segment and mounted slidably in the bore for moving the segment with respect to the body, a second elongated segment insertable in the other gap in the body for forming a continuation of the winding surface of the body and for moving the thrust element in thev bore so as tohold Vthe first-mentioned segment in its expanded position, and .means for selectively holding the second-mentioned segment on the body while the material is being coiled thereon and for releasing the segment so that it may be removed from -the body after the material is wound thereon,

whereby when the last-mentioned segment is removed from the body the mst-mentioned segment collapses toward the body and permits the body to be withdrawn readily from material Wound thereon.

5. An arbor for winding flexible material thereon, which comprises a rod having a pair of longitudinal grooves in its winding surface andv a bore communicating With the grooves, an elongated segment positioned movably in one of the grooves vand having a thickness .less than the depth of said groove, a thrust member attached to the segment so as to pass through the bore Vand extending into the other groove in the winding surface of the rod, means insertable in said other groove for moving the thrust member and thereby moving the segment with respect to the rod, and `means provided on the thrust element for limiting the movement of the segment with respect to the body so that the maximum movement of the thrust element positions Ythe segment so that its outer surface is aligned with the winding surface of the rod.

6. An arbor for winding iiexible material thereon, which comprises a rod having a pair of longitudinal grooves in its winding surface and a plurality of parallel, transverse bores communieating with said grooves, an elongated member positioned movably in one of the grooves and Vhaving a thickness less than the depth of said groove, a plurality of pins spacedly secured on the movable member so as to pass through the communicating bores andY extend into the empty groove, and means insertable in theempty groove for moving the pins and thereby moving the member so that its `outer surface is aligned with the Winding surface of the rod. Y

'I An arbor for winding fiexible material thereon, which comprises a body having a plurality of longitudinalgrooves in its winding surface and a plurality of bores communicating with the grooves, an elongated member positioned movably in one of the grooves and having a thickness less than the depth of said groove, a plurality of pins spacedly secured on the movable member so as to pass through the communicating bores and extend Vinto the empty groove, resilient means insertable in said empty groove for moving the pins 'radially and thereby move the member outwardly in its groove, means for limiting the outward movement of the member by the pins so that its outer surface is aligned with the winding surface of the body when the pin-actuating means is positioned in the groove, and means for selectively holding the pin-actuating means in its respective groove and releasing the pin-actuating means so that it may be withdrawn from said groove.

8. An arbor for winding flexible material thereon, which comprises an elongated cylindrical body having Va plurality of longitudinal grooves in its Winding surface and a bore extending transversely therethrough and communicating with the grooves, an elongated segment positioned in one of the grooves and movable generally transversely with respect to the body between a collapsed position and an expanded position in which the outer surface of the seg- Y ment forms a continuation of the winding surface of the body, a thrust element attached to the segment and mounted slidably in the bore so as to extend into the other grove in the Winding surface of the body, means insertable in said other groove for clamping the end of the flexible material to the arbor and moving the thrust member to move the segment outwardly in its groove, and means provided on the thrust member for limiting the movement of the member in the bore so that when the actuating means is inserted in the groove the thrust member holds the segment so that its outer surface is ilush with the Winding surface of the body.

9. An arbor for Winding flexible material into coils, which comprises a cylindrical body having a plurality of longitudinal grooves in its winding surface and a plurality of bores communicating with said grooves, an elongated segment positioned movably in one of the grooves, said segment having its outer surface curved to conform with the surface of the body and a thickness less than the depth of the groove in which it is positioned, a plurality of pins secured spacedly on the segment so as to pass through the communieating bores and extend into the empty groove, a bar insertable in said empty groove for actuating all the pins to move the segment outwardly in its groove and for clamping the end of the flexible material to the body, means provided on the pins for limiting movement of the pins so that the maximum movement thereof positions the segment so that its curved surface and the winding surface of the body form a perfect circle, and means for selectively holding the bar in its groove to maintain the segment in its outermost position while the material is wound on the body and for releasing the bar so that it may be withdrawn from its groove after the material is wound on the body.

10. A collapsible arbor, which comprises an elongated rod having a pair of opposed longitudinal grooves in its winding surface and a plurality of parallel, transverse bores communicating with one of the grooves and counterbored portions thereof communicating with the opposite groove, a segment positioned movably in the groove communicating with said bores and having its outer surface curved to conform to the winding surface of the rod, the maximum thickness of the segment being less than the depth of said groove, a plurality of pins secured spacedly to the segment so as to slidably engage the bores, said pins having headed portions which slidably engage the counterbored portion of the bores and extend into the groove communicating therewith when the segment rests on the bottom of its groove, said pins being so designed that when the headed portions abut the bottom of the counterbores the segment is positioned in its groove so that its outer surface is flush with the winding surface of the rod, and a curved resilient bar insertable in the other groove for clamping the end of the material to the rod and for moving the pins until their headed portions abut the bottom of the counterbores and hold the segment in its winding position with respect to the winding surface of the rod.

HAROLD R. LONGFELLOW.

References Cited in the le of this patent UNITED STATES PATENTS Number Name Date '750,078 Barter Jan. 19, 1904 799,435 Baker Sept. 12, 1905 1,259,163 Sundh Mar. 12, 1918 2,192,358 Lieber Mar. 5, 1940 2,198,421 Wise Apr. 23, 1940 2,558,689 Miller June 26, 1951 

